Self-steering device.



F. L. J0HNs0N. SELF STEERING DEVICE.

APPLICATION FILED JANA, 1912.

Patented Apr. 1, 1.913.Y

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9 Y Y i who@ ffmm WLM/Waeco UNITED STATES PATENT oFFIoE.

FREDERIGKfL. JOHNSON, DF LAKOTA, NORTH DAKOTA.

'SELF-STEERING DEVICE.

' Specication of Letters Patent. 'j

. ppl'icwtionled January 4, 1912. t Serial No. 669,442. A f

y make and use the same. y

My invention relates to new and useful improvements in furrow-pilots adapted to be attached ,to the swiveled steering truck of a traction engine, when said engine 'is to be employed for plowing, and the object of my' linvention is to improve the construction and increase the eiicienc'y of devicesof the labove described character. l

A further object of my invention is the provision of a novel form of supporting frame by means of which a pilot wheel is connected to the truck. And astill further object of my invention is to provide a frame which may be readily adjusted for use upon different engines or upon the same engine with differentplows.

With theabove and other objects in View, myinvention will be more fully described, illustrated in thev accompanying drawings which show a preferred embodiment of my device and then specically pointed out in the claim which is attached to and forms a part of this application.

In the drawings, Figure 1 is atop plan of my improved device in operation. Fig. 2 is a side elevation.

Referring more specifically to the drawings, in which similar reference numerals designate corresponding parts throughout, 10 designates in general the swiveled forj ward truck of a conventional form of traction engine which truck is provided adjacent each end with a pair of forwardly directed, spaced apart ears 11. Pivoted for vertical swinging between one pair of. said ears 'is the rear end of a Jframe member 12 and correspondingly pivoted between the other pair of ears is a second frame member 13 the forward end of which is adjustably secured to rigidly secured to an'axle 17 upon one end ofv ywhlch 1s rotatably mounted a bearing wheel 18. The other end of this axle 17 vis bent downwardly as shown at 19 and rotatably Patented Apr.'1',"1913. l

mounted upon this downwardly bent portion 1s the pilot wheel 20 adapted to run in thel furrow as shown.. Pivotally secured to the axle 17. adjacent that end whichl bears the wheel 18 is the forward end of a brace rod 21 the rear end of which is adjustably se-v cured to the frame member l2 by a bolt'22 which passes through one of the bores 15 of the frame member. By `means of the ad-- A justment thus fprnished between the frame member 12 and the frame member 13 and brace 21 rthe device may be readily attached to various forms of traction kengines and may also be adjusted to give various oi`-sets to the pilot wheel 20, while at the same time the axle 17 is constantly maintained at right angles to the line of travel.

The standard -16 is provlded at a point`v`l above its connection with the frame member 12 with a pulley 23 over which is passed a cable 24 one end of which is secured to the body of the traction engine as at 25 while the opposite end runs rearwardly to a point.

changes in the details of construction may be made if desired without in the slightest degree depart-ing from the spirit of my invention.

What I claim is The combination with a front turning vehicle axle and bracket members secured near the ends of the axle; of a rod having one end secured in one bracket and extending. at right angles to the axle, a second rod secured by one end in the other bracket and crossing the path of the first rod, said second rod having a plurality ofspaced openings near its forward end. means passed through the forward end if the first rod and through one ot' the openings in the secondA rod to adjustably connect' the forward ends of" said rods, end o the second axle and adjustebly conan axle having a. bent end with a pilot Wheel neoted by tsopposice end to the second rod. v10 secured thereto, andv a bearing Wheel upon In testimony whereof, ax my sgna the other end of the axle, aA standard projeottuyo, in presence of two Witnesses.

ing upwardly from the axle near the rst FREBERCK L. JOHNSQN. mentioned end and secured to the forward Witnesses:

extremity ofthe second rod, and a bmce rod GEORGE D. KELLEY,

secured by one end to the second mentioned HILDA JOHNSON. 

